Bacteria that are harmful Silver that can protect Consumers / families that are concerned But nanosilver is not killing all bacteria Focus is taken away from why we have pathogene bacteria where
Ethics and nanotechnology – aspects of democracy, legitimacy and sustainable development Farm Inn, 26 Nov 2009 Michael Søgaard Jørgensen The Science Shop c/o DTU Management Technical University of Denmark 2800 Kgs. Lyngby, Denmark [email_address]
The OilFresh catalyst system is based on nanoparticle technology.
Nanoceramic catalytic pellets are fused together to create a huge surface area on the catalyst surface.
Extends the fry life of oils by reducing oxidative degradation
Students at Nanotechnology and society course, DTU, Jan 2008
Sociology of technology: Script and description
Script: A kind of knowledge claim that lays out a program of action ’the designer’ (un-)consciously assume will be followed
A manuscript for the role of the technology
De-scription : the accept / resistance / modification of the inscribed to the script
Is nano frying oil used for promoting healthy fried food?
Can consumers manage not to eat more fried food?
Sociology of technology: Enrollment and translation
How actors enroll other actors or non-humans into postions that suit their purposes
How problems are translated to enable a solution with a certain technology
Fight obesity with nano enhanced frying oil
Fight bacterial problems with nano silver
Should we fight bacteria? “ The Silver Nano Health System is a comprehensive system developed by Samsung to improve your quality of life by eliminating bacteria from the places that count most.....Just as a dirty washer never truly cleans clothes… Samsung has found a solution in the safety of silver , ionizing silver into ions for an effective coating that lets your home appliances remain remarkably free of bacteria and odors. ”
Technological innovations must be supported by a corresponding evolution of social and institutional support and control
To avoid a widespread use of nanosilver
To avoid that fast food chains use a product like Oilfresh to promote ’healthy fried food’ => a higher consumption of fried food
Who should take of these uncertainties and when?
What (manu)scripts are we as researchers part of (writing)?
Governance model (2): Systems’ approach to nanotechnology
Should ensure that focus is
not only on single properties or features,
for example the tiny dimensions of a nanotechnology ,
but the whole system , which a nanotechnology or a nanotechnology-based product is part of
Including the need for supporting infrastructures like quality standards, waste (water) management systems etc.
E.g. facilities to treat the waste water from households having nano silver products
Governance model (3): Env. assessment based on dialogue and life cycle perspective
A life cycle approach...
where not only the use of the technology, but also the manufacturing of it, the use and in the post-use phase are described and assessed.
At the research and innovation stages
A life-cycle screening of possible future applications,
Based on the MECO-concept (Materials, Energy, Chemicals, Others (Occupational Health and Safety etc.))
Dialogue about ‘relevant’ environmental aspects and the possibilities for prevention
The principle behind a life cycle inventory of a product
The interaction between
… .in the different links of the life cycle/product chain
Follow the product through the possible, intended or actual life cycles
Nanospeed badminton racket in life cycle perspective Materials, Energy, Chemicals and Others matrix for the different life cycle stages of a “nanospeed” badminton racket. Nanospeed racket Raw materials Production Use Disposal M aterials Fossil fuels Waste resin E nergy Vacuum pump Melting and curing C hemicals Chlorinated and other solvents Nanoparticles released from waste? O ther aspects, including occupational health and safety Occupational handling of nanoparticles
Motor oil with nanoparticles in life cycle perspective The Materials, Energy, Chemicals and Others matrix for the different life cycle stages of a motor oil. Oil lubricant Raw materials Production Use Disposal M aterials Fossil fuels E nergy Electricity Improved lubrication? C hemicals Release of nanoparticles? Nanoparticles released from waste? O ther aspects, including occupational health and safety Occupational handling of nanoparticles
Environmental potential from a nanotechnology-based product!? (Steinfeldt et al., 2004) CC = Car Coating Steinfelt et al 2004: Globalwarming potential (kg CO2-equivalents per m2 coated surface
Reactions in lung alveoles from particles and nanoparticles Nanoparticles released into the blood Bigger particles easier digested by macrophages Fine particles Ultrafine particles < 0.1. nm Nano particles, environment and health. From Ecological Council (in Danish)